Double angles (2L)

2L8X8X9/16 2L203X203X14.3

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xy2b + s = 16.38d = 8t = 0.563t = 0.563
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
8in
Thicknesst
0.563in

Mass and area

Mass per lengthm
59.2lb/ft
Cross-sectional areaA
17.5in²

Strong axis x–x

Moment of inertiaIx
108in⁴
Elastic section modulusSx
18.7in³
Plastic section modulusZx
33.6in³
Radius of gyrationrx
2.49in

Weak axis y–y

Moment of inertiaIy
192in⁴
Elastic section modulusSy
24in³
Plastic section modulusZy
38.4in³
Radius of gyrationry
3.31in

Torsion and stability

Polar radius (shear center)r̄o
4.56in
Flexural constantH
0.825

Centers

Centroidȳ
2.19in
Plastic neutral axisyp
0.548in

Slenderness ratios

Wall slendernessb/t
14.2

Equivalents in other standards